lethal pants 

lethal pants is when a man gets a boner that could possibly kill someone or that he may rape a man or woman.

"Yo Simon, tell yo girl to keep away from jack, he's got some lethal pants"

"Hey Carly, watch out for jack he has lethal pants!"

lethal pants by ExpertOnEvrything69 May 29, 2017

Magic Pants 

Pants that make any girl go from flat to PHAT

Dude 1: Bro did you see Flat Ass Rebecca today
Dude 2: Ye she's looking PHAT today
Dude 1: Dude she's wearing those magic pants today looking like a whole new student

Magic Pants by TVBroadcasting2018 June 1, 2018

Schrödinger Pants 

Pants which are shorter than the wearer’s shirt and it appears the wearer has on no pants. The wearer is simultaneously both wearing and not wearing pants. Much like Schrödinger’s cat; which is simultaneously dead and alive in an unopened box.

The college students have moved back to campus; I saw a whole flock of college girls in Schrödinger pants at Walmart today.

Schrödinger Pants by KuteKhemist August 21, 2018

Chunky Pants 

When your pockets are full of cash resulting in your pants appearing to be chunky

“Walking out the bank I got chunky pants, dollars hanging out my pocket” THE_OG_LORENZO

Chunky Pants by FLYING PIPPY March 19, 2022

crust pants 

Old pants that have started to fall apart, so you put patches on to keep them from disintegrating. The patches consist of random fabric and crust punk band patches. The pants are also rarely ever washed, but must be washed by hand when they are.

Cool dude: "Woah did you see his crust pants?"
Another cool dude: "Yeah! His pants are pretty dope."

crust pants by d0gp1ss March 6, 2023

Netflix pants

Stretchy non-sexy pants, usually purchased from Walmart or Amazon, to be worn at home to watch or binge Netflix. Your kids and the schlub you married will see you in said pants. Note these same pants also work for Hulu and HBO.

Guy: hey babe. Let’s watch Ozark.
Gal: hold on ya schlub let me put on my Netflix pants and get some snacks. I’ll meet you on the couch

Netflix pants by Boom69 September 5, 2023

Laugh My Freakin Pants Off 

A more extreme version(indicating more laughterness) of LMAO.

Considered, by some discerning gamesters, to indicate MORE laughterness than even LMFAO!

The word, 'freakin' may also be substituted with other 'f' words such as, 'flippin' 'flappy' or 'fuckin'
Its' all a matter of personal preference, imo!

Simplyknitting> Oh shit! I just attacked my freakin Thorn neighbour instead of that lvl 5 npc! Typed the wrong coords in!

Gobbledegook> lol you dumb ass noob, sk! ROFL and Laugh My Freakin Pants Off :)

mighty cale>Awww SK! But yeah, GG, i just gotta LMFPO too! *sigh now we gotta get sk outta the shit!*

It has also been known too add the word 'big' and/or 'Smelly' into the mix. I feel this is quite acceptable i.e. Laugh My Freakin Big Smelly Pants Off.

Other variations may include the use of a relatives' pants:-

Laugh My Mothers Freakin Big Flappy Pants Off

Laugh My Sisters' Smelly Pants Off

Laugh My Grandads' Freakin Smelly Big Flappy Pants Off

But it can all get a bit out of hand and become too cumbersome! LMGFSBFPO! :)

Laugh My Freakin Pants Off by SimplyKnitting July 17, 2010